{"id":"CVE-2026-56259","aliases":["GHSA-f989-c77f-r2cq","PYSEC-2026-3448"],"url":"https://o3.security/vulnerability/CVE-2026-56259","summary":"Crawl4AI - LLM Credential Exfiltration via base_url and Environment Variable Resolution","details":"Crawl4AI before 0.8.8 contains credential exfiltration vulnerabilities in the Docker API server that allow attackers to redirect LLM API calls to attacker-controlled endpoints and read arbitrary environment variables. Attackers can exploit the unauthenticated /md, /llm, and /llm/job endpoints by supplying a malicious base_url parameter and setting api_token to env:VARIABLE_NAME to exfiltrate provider API keys and server secrets including JWT SECRET_KEY for authentication bypass.","published":"2026-07-12T12:06:30.919Z","modified":"2026-08-19T03:31:13.706015356Z","cvss":null,"epss":{"score":0.00433,"percentile":0.36193,"asOf":"2026-09-01"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"crawl4ai","fixedVersion":"0.8.8"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56259.json"},{"type":"ADVISORY","url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-f989-c77f-r2cq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56259"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/crawl4ai-llm-credential-exfiltration-via-base-url-and-environment-variable-resolution"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-19T03:31:13.706015356Z"}}